A cartographer is someone who makes maps. Cartographers gather information about places, decide what details matter most, and figure out how to show a three-dimensional world on a flat surface, work that requires both artistic skill and scientific knowledge.

For thousands of years, cartographers have shaped how we understand our planet. Ancient cartographers created maps from travelers' descriptions and astronomical observations, sometimes getting things impressively right and sometimes wildly wrong. When European cartographers first tried mapping the Americas in the 1500s, they had to piece together information from dozens of explorers, each seeing only a small part of an enormous landmass.

Modern cartographers use satellites, computer software, and massive databases, but they still make crucial choices: Which roads should appear on a city map? How can you show mountains so people understand their height? What colors make a weather map easy to read? A talented cartographer knows that a good map helps people find what they're looking for, plan journeys, or understand complex information at a glance.

Their work appears everywhere, from the atlas in your classroom to the GPS on your family's phone.